CN212223371U - A take out and put mechanism, throw material box, washing machine for automatic input liquid - Google Patents

Abstract

The invention provides a pumping and discharging mechanism for automatically throwing liquid, which comprises a pumping and discharging mechanism body arranged in an automatic throwing and feeding box body, wherein the pumping and discharging mechanism body comprises a piston connecting rod assembly and a driving assembly; the piston connecting rod assembly and the inner wall of the piston cavity form a sealed pumping cavity, the driving assembly drives the piston connecting rod assembly to reciprocate in the piston cavity, and pressure in the pumping cavity is changed, so that liquid in the liquid storage cavity communicated with the pumping cavity in a one-way mode flows into the pumping cavity or flows out of the pumping cavity, and pumping or discharging of the liquid is achieved. The invention also provides a single-cavity piston type feeding box for automatically feeding liquid and a washing machine. The pumping and discharging mechanism provided by the invention is simple and small in structure, small in occupied space and capable of accurately controlling the amount of automatically-thrown liquid, and is arranged in the single-cavity piston type feeding box body for automatically-throwing liquid.

Description

A take out and put mechanism, throw material box, washing machine for automatic input liquid

Technical Field

The utility model relates to a household electrical appliances technical field especially relates to a take out and put mechanism, throw material box, washing machine for automatic putting in liquid.

Background

At present, various types of drum washing machines are provided with a material box assembly added with washing powder, laundry detergent, softener and other washing liquids, and users select and put the washing powder, the laundry detergent, the softener and the like according to their own requirements. The material box assembly provided by the prior art comprises a handle, an upper box body, a lower box body and a washing liquid box, wherein the washing liquid box needs to be pulled and pushed manually before washing, then washing powder, washing liquid or softener is put in the corresponding position of the washing liquid box, and if other articles exist in the hand of a user, the washing liquid box is inconvenient to extract.

In addition, the feeding amount of the laundry detergent is not easy to control when the laundry detergent is manually fed, and the washing effect is more or less directly influenced. Market data indicate that the number of users who use laundry detergent is large and the number of users who use softener or disinfectant is small. And along with people's requirement to the standard of living is higher and higher, relies on more from customer's actual demand to the intellectuality of household electrical appliances, designs the automatic feeding box of putting in of single chamber, and the user puts in washing machine according to self demand and puts in by oneself the laundry liquid has become the technical problem that this technical field's urgent need was solved.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides an automatic put in drawing of liquid puts mechanism simple structure, and can be used for the amount that accurate control takes out or puts liquid, realizes accurate automatic putting.

In order to achieve the above purpose, the utility model is realized by the following technical scheme.

One object of the utility model is to provide a drainage mechanism for automatically throwing in liquid, which comprises a drainage mechanism body arranged in an automatically throwing and feeding box body, wherein the drainage mechanism body comprises a piston connecting rod assembly and a driving assembly connected with the piston connecting rod assembly, and the piston connecting rod assembly is movably arranged in a piston cavity in the automatically throwing and feeding box body; wherein the content of the first and second substances,

the piston connecting rod assembly and the inner wall of the piston cavity form a sealed pumping cavity, the driving assembly drives the piston connecting rod assembly to reciprocate in the piston cavity, and pressure in the pumping cavity is changed, so that liquid in a liquid storage cavity communicated with the pumping cavity in a one-way mode flows into the pumping cavity or flows out of the pumping cavity, and pumping or discharging of the liquid is achieved.

Preferably, the piston connecting rod assembly comprises a piston connecting rod and a piston head, and the piston head is attached to the inner wall of the piston cavity to seal the pumping cavity; one end of the piston connecting rod is connected with the piston head, and the other end of the piston connecting rod is connected with the driving assembly.

Preferably, the driving assembly comprises a motor, a rotating part and a convex rod, the convex rod is eccentrically arranged on one side of one surface of the rotating part, the other surface of the rotating part opposite to the convex rod is connected with the motor, a long hole is formed in one end of the piston connecting rod, and one end of the convex rod is movably arranged in the long hole; wherein the content of the first and second substances,

the moving assembly drives the rotating piece to move, so that the convex rod reciprocates in the long hole to guide the piston connecting rod assembly to reciprocate in the piston cavity.

Preferably, the length direction of the long hole is perpendicular to the reciprocating direction of the piston connecting rod assembly.

Preferably, the rotating part and the protruding rod are both cylindrical, the motor drives the protruding rod to perform circular motion, and the length of the long hole is larger than or equal to the diameter of a circle where the circular motion path of the protruding rod is located.

Preferably, the motor drives the protruding rod to reciprocate along an arc-shaped path, and the length of the long hole is smaller than the radius of a circle where the arc-shaped movement path of the protruding rod is located.

Preferably, the piston head is provided with at least one circle of piston rubber ring for sealing on the peripheral side.

The second purpose of the utility model is to provide a single-chamber piston type feeding box for automatically feeding liquid, which comprises an automatic feeding box body, wherein the automatic feeding box body comprises a shell, a liquid storage chamber and a piston chamber which are arranged in the shell, and a pumping mechanism body as described above, wherein the piston connecting rod assembly and the inner wall of the piston chamber form a sealed pumping chamber, and the liquid storage chamber is communicated with the pumping chamber in one way; wherein the content of the first and second substances,

the pumping and discharging mechanism body changes the pressure in the pumping and discharging cavity so that the liquid in the liquid storage cavity flows into the pumping and discharging cavity or the liquid in the pumping and discharging cavity flows out, and the automatic liquid feeding is realized.

Preferably, a one-way valve is respectively arranged at the suction port of the suction cavity and the liquid storage cavity and at the discharge port of the suction cavity, and the one-way valve is opened or closed along with the change of the pressure in the suction cavity.

Preferably, the first check valve arranged at the suction port of the drainage cavity comprises a first check valve hole arranged on the side wall of the drainage cavity connected with the liquid storage cavity and a first valve hole plug covering one end of the first check valve hole facing the drainage cavity, so that the drainage cavity is communicated with the liquid storage cavity in a one-way mode; the second one-way valve arranged at the discharge port of the pumping cavity comprises a second one-way valve hole arranged on the side wall of one side of the pumping cavity and a second valve hole plug covering the outer side end of the second one-way valve hole; wherein the content of the first and second substances,

and the piston connecting rod assembly moves to change the pressure in the pumping and discharging cavity, so that the first valve hole plug or the second valve hole plug is elastically deformed to be opened, and the first one-way valve or the second one-way valve is opened.

Preferably, the protruding rod of the pumping and releasing mechanism body is located in the middle of the long hole of the pumping and releasing mechanism body and closest to the piston cavity, and the piston head of the pumping and releasing mechanism body is located far away from the first one-way valve and close to the second one-way valve, and at this time, the first one-way valve and the second one-way valve are both in a closed state.

Preferably, the piston chamber is located at or near the bottom of the liquid storage chamber.

Preferably, the first one-way valve is located near the bottom of the liquid storage chamber.

Preferably, the housing is provided with a dispensing opening for dispensing liquid into the liquid storage chamber.

The utility model discloses the third purpose provides a washing machine, including the washing machine body, still including setting up as above in the washing machine body automatic put in and throw the material box body, take out put mechanism body fixed connection in the washing machine is originally internal.

Preferably, the drainage cavity is communicated with the liquid guide cavity of the washing machine in a one-way mode.

Preferably, the pumping chamber is provided separately from the drainage chamber of the washing machine, and the discharge port of the pumping chamber is aligned with the drainage chamber of the washing machine.

Preferably, the housing is capable of being ejected or drawn out relative to the washing machine body part, so that the feeding opening of the housing is partially or completely exposed out of the washing machine body.

Preferably, the outer wall of the shell is provided with a limit block for limiting the popping or withdrawing distance of the shell relative to the washing machine body part.

Compared with the prior art, the beneficial effects of the utility model reside in that:

(1) the utility model provides an automatic put in drawing of liquid and put mechanism simple structure, and can be used for the amount that accurate control takes out or puts liquid, realize accurate automatic the input, draw and put mechanism body structure small and exquisite, occupation space is little, sets up in the equipment that needs take out put liquid to do not influence the whole volume of equipment, arrange the requirement that is not harsh to the structure of equipment inside.

(2) The utility model discloses an among the preferred scheme, set up in the nose bar on a rotating member surface, the slot hole that sets up on piston rod through rotating member and off-centre, come the reciprocating motion distance of accurate control piston and connecting rod subassembly in the piston cavity, but the pressure of intracavity is put in accurate control.

(3) The utility model provides a washing machine is equipped with the stopper on the casing outer wall in the automatic feeding box body of putting in of washing machine body inside to accurate control casing pops out or the distance of taking out when needs deposit the liquid body to liquid storage cavity, so that the storage cavity that goes on deposits the liquid body and can not influence the subsequent volume of taking out or putting in taking out in the chamber, the automatic volume of putting in of the accurate control liquid of being convenient for.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the specification, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic perspective view of a drawing mechanism body according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a drawing mechanism body according to another embodiment of the present invention;

fig. 3 is a first schematic view of the three-dimensional structure of the automatic feeding box body of the present invention;

fig. 4 is a schematic diagram of a three-dimensional structure of the automatic feeding box body of the present invention;

fig. 5 is a cross-sectional view of the automatic feeding and feeding box body of the utility model;

fig. 6 is an enlarged view of the structure of fig. 5 at a;

fig. 7 is a schematic perspective view of a first check valve according to an embodiment of the present invention.

In the figure:

100. a pumping mechanism body; 11. a piston link assembly; 111. a piston connecting rod; 111a, a long hole; 112. a piston head; 113. a piston rubber ring; 12. a drive assembly; 121. a rotating member; 122. a nose bar;

200. automatically putting the feeding box body; 21. a housing; 211. a throwing port; 212. a limiting block; 22. a liquid storage chamber; 23. a piston cavity; 231. drawing and releasing the cavity; 24. a one-way valve; 241. a first check valve; 2411. A first one-way valve bore; 2412. a first valve plug; 242. a second one-way valve; 2421. a second one-way valve bore; 2422. a second valve plug.

Detailed Description

The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses a more detailed description of the present invention, which will enable those skilled in the art to make and use the present invention. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, and the like are used based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

Example 1

As shown in fig. 1 and 5, the utility model provides a pumping mechanism for automatically throwing in liquid, which comprises a pumping mechanism body 100 arranged in an automatic throwing and feeding box body 200, wherein the pumping mechanism body 100 comprises a piston connecting rod assembly 11 and a driving assembly 12 connected with the piston connecting rod assembly 11, and the piston connecting rod assembly 11 is movably arranged in a piston cavity 23 in the automatic throwing and feeding box body 200; wherein the content of the first and second substances,

the piston connecting rod assembly 11 and the inner wall of the piston cavity 23 form a sealed pumping cavity 231, the driving assembly 12 drives the piston connecting rod assembly 11 to reciprocate in the piston cavity 23, the space size of the pumping cavity 231 is changed, and further the pressure in the pumping cavity 231 is changed, so that external liquid which is communicated with the pumping cavity 231 in a one-way mode flows into the pumping cavity 231 or liquid in the pumping cavity 231 flows out, and pumping or discharging of the liquid is achieved.

As shown in fig. 1, the piston link assembly 11 includes a piston link 111 and a piston head 112, the piston head 111 is attached to the inner wall of the piston cavity 23 to seal the pumping cavity 231, and a sealed space formed by the piston head 111 and the inner wall of the piston cavity 23 is the pumping cavity 231. The piston rod 111 is connected to the piston head 111 at one end and to the drive assembly 12 at the other end. The driving assembly 12 drives the piston rod 111 and the piston head 111 to reciprocate in the piston cavity 23, thereby changing the space size of the pumping cavity 231.

The driving assembly 12 includes a motor (not shown), a rotating member 121, and a protruding rod 122, wherein the protruding rod 122 is eccentrically disposed on one side of a surface of the rotating member 121, and the other side of the rotating member 121 opposite to the protruding rod 122 is connected to the motor. One end of the piston connecting rod 111 is provided with a long hole 111a, further, the long hole 111a is located at the middle position of one end of the piston connecting rod 111, one end of the protruding rod 122 is movably arranged at the long hole 111a, and the rotating member 121 can move along the inner contour of the long hole 111 a; wherein, the motor drives the rotating member 121 to move, so that the protruding rod 122 reciprocates in the long hole 111a to guide the piston-connecting rod assembly 11 to reciprocate in the piston cavity 23. Further, the position of the protruding rod 122 closest to the piston rod 111 on the rotating member 121 is the initial position of the movement of the piston rod assembly 11, and the space of the pumping chamber 231 is the minimum. In this embodiment, through the motor, the rotating member 121, the protruding rod 122 eccentrically disposed on one surface of the rotating member, and the long hole 111a disposed on the piston connecting rod 111, the protruding rod 122 reciprocates in the long hole 111a along with the rotation of the rotating member 121, so that the piston connecting rod assembly 11 reciprocates in the piston cavity 23, and the joint between the piston connecting rod 111 and the driving assembly 12 is always in a movable state, so that the piston connecting rod assembly 11 only has a linear motion along the central axis of the piston cavity 23, and does not have a motion in other directions, and therefore, it is not necessary to design more complex structures to accommodate the motion footprints of the piston connecting rod assembly 11 in other directions. In addition, in this embodiment, the rotating member 121 is used to assist the protruding rod 122 to perform circular motion, and the rotating member 121 may have any shape and any structure, so long as the protruding rod 122 is eccentrically disposed on the rotating member 121 and then rotates with the rotating member 121 to perform circular motion. The protruding rod 122 may be of any structure, and only needs to be matched with the long hole 111a to guide the piston link assembly 11, so that the structure is simple and easy to control, and the occupied space is small.

The rotary member 121 and the protruding rod 122 are cylindrical. The motor rotates in one direction to drive the rotating member 121 to rotate, the protruding rod 122 is eccentrically disposed on the rotating member 121 to make the protruding rod 122 perform circular motion along with the rotation of the rotating member 121, because the position of the rotating member 121 is fixed, when the protruding rod 122 needs to perform circular motion, the piston connecting rod 111 has a certain constraint force on the rotating member 121, and in order to perform the circular motion smoothly, the protruding rod 122 reciprocates in the long hole 111a along the protruding rod 122 and reciprocates in the piston cavity 23.

Further, the cross section of the long hole 111a is a rounded rectangle with unequal adjacent sides. The length direction of the long hole 111a is perpendicular to the reciprocating direction of the piston connecting rod assembly 11, the width of the long hole 111a is slightly larger than the outer diameter of the convex rod 122, the length of the long hole 111a is larger than or equal to the diameter of a circle of a circular motion path of the convex rod 122, the long hole 111a always covers the circular motion footprint of the convex rod 122 in the reciprocating process of the piston connecting rod assembly 11, so that only acting force along the axial direction of the piston cavity 23 is applied to the piston connecting rod assembly 11 by the driving assembly 12, and the friction force between the piston connecting rod assembly 11 and the inner wall of the piston cavity 23 during the reciprocating motion in the piston cavity 23 is prevented from being increased due to the acting force directed to the circumferential direction of the inner wall of the piston cavity 23, and the reciprocating motion.

In one embodiment, as shown in fig. 1, the long hole 111a is an elongated through hole, and one end of the protruding rod 122 penetrates through the long hole 111a and can reciprocate along the inner contour direction of the long hole 111 a.

In one embodiment, the slot 111a is an elongated blind hole, and one end of the protruding rod 122 is located in the slot 111a and can reciprocate along the inner contour direction of the slot 111 a.

When the length direction of the long hole 111a is perpendicular to the reciprocating direction of the piston link assembly 11 in order to always cover the circular motion footprint of the protruding rod 122 during the reciprocating motion of the piston link assembly 11 in the piston cavity 23, the length of the long hole 111a is the minimum.

The piston head 112 is provided with at least one piston rubber ring 113 for sealing around the circumference to form a sealed pumping cavity 231. Further, the number of the piston rubber rings 113 is three, and the arrangement of the three piston rubber rings 113 improves the sealing performance and simultaneously can avoid the situation that the sealing performance is reduced due to the damage of a certain piston rubber ring 113.

It should be understood that although the motor is not shown in the driving assembly 12 shown in fig. 1, in an embodiment, the rotating member 121 may be directly configured as a motor, i.e., the protruding rod 122 is configured as an output rotating shaft which is directly eccentrically disposed on the surface of the motor. In another embodiment, the rotating member 121 is a thin plate structure, and the rotating member 121 is directly disposed on a surface of the motor, or other connecting structures are disposed between the rotating member 121 and the motor. Accordingly, it will be apparent to those skilled in the art that modifications or substitutions of features can be made to the drive assembly 12 without departing from the principles of the invention, and such modifications or substitutions of features are considered to be within the scope of the invention.

In one embodiment, the drive assembly 12 includes a linear motor connected to the other end of the piston rod 111 opposite the piston head 112; the linear motor directly drives the piston rod 111 with the piston head 112 to reciprocate within the piston chamber 23.

The drawing and discharging mechanism body 100 provided by the embodiment accurately controls the reciprocating motion path of the piston connecting rod assembly 11 in the drawing and discharging cavity 231 through the motor, the rotating member and the convex rod, and is easy to control and accurate in throwing amount. The gear transmission is not needed, the transmission parts are reduced, the defect of inaccurate gear transmission control is avoided, and the transmission path is convenient to control. In addition, when a certain part of the drawing and placing mechanism body 100 is damaged and needs to be maintained, the part only needs to be taken down independently for maintenance or replacement, the situation that a whole set of parts are required for replacement in gear transmission assembly maintenance is avoided, maintenance cost is reduced, maintenance process is simplified, and gear engagement debugging is not needed.

Example 2

As shown in fig. 2, the motor drives the protruding rod 122 to reciprocate along an arc-shaped path, the length direction of the long hole 111a is perpendicular to the reciprocating direction of the piston link assembly 11, and the length of the long hole 111a is smaller than the radius of the circle where the arc-shaped path of the protruding rod 122 is located, that is, the central angle corresponding to the one-way arc-shaped path of the protruding rod 122 is smaller than 180 °. Further, the arc-shaped moving path of the protruding rod 122 is located at one side of the rotating member 121, so that the piston rod 111 drives the piston head 112 to move the maximum distance in one stroke in the pumping chamber 231 along with the arc-shaped movement of the protruding rod 122. The protruding rod 122 is located at one end of the long hole 111a, and the protruding rod 122 is located at one end of the arc-shaped moving path closest to the piston connecting rod 111, when the piston connecting rod assembly 11 is at the initial position. When the motor rotates forwards, the convex rod 122 moves to the other end along one end of the inner wall of the long hole 111a in a single movement; when the motor rotates reversely, the protruding rod 122 moves backward along the inner wall of the long hole 111 a. The reciprocating motion of the convex rod 122 along the arc-shaped motion path is controlled through the forward and reverse rotation of the motor, and the length of the long hole 111a is smaller than the radius of the circle where the arc-shaped motion path of the convex rod 122 is located, so that the arc-shaped path of the convex rod 122 is only located on one side of the rotating part 121, when the rotating part 121 rotates, the convex rod 122 only encounters one inflection point in single-pass motion, the motion of the convex rod 122 is stopped due to the limitation of the long hole 111a and the change of the direction of the inflection point when the convex rod 122 encounters the inflection point, and the matching motion of the rotating part 121, the convex rod 122 and the piston connecting rod assembly 11. Other technical schemes are the same as embodiment 1, and are not described herein again.

Example 3

As shown in fig. 3 to 7, the utility model provides a feeding box with a single-cavity piston for automatically feeding liquid, which comprises an automatic feeding box body 200, wherein the automatic feeding box body 200 comprises a shell 21, a liquid storage cavity 22 and a piston cavity 23 which are arranged in the shell 21, the pumping and discharging mechanism body 100 as described above, a sealed pumping and discharging cavity 231 is formed by the piston connecting rod assembly 11 and the inner wall of the piston cavity 23, and the liquid storage cavity 22 is communicated with the pumping and discharging cavity 231 in one way; wherein the content of the first and second substances,

the pumping mechanism body 100 changes the pressure in the pumping chamber 231 to make the liquid in the liquid storage chamber 22 flow into the pumping chamber 231 or the liquid in the pumping chamber 231 flow out, so as to realize automatic liquid delivery.

As shown in fig. 5 and 6, the suction port of the suction chamber 231 with respect to the liquid storage chamber 22 and the discharge port of the suction chamber 231 are respectively provided with a check valve 24, and the check valve 24 is opened or closed in accordance with a change in pressure in the suction chamber 231. That is, the pressure difference between both sides of the pumping chamber 231 and the liquid storage chamber 22, and the pressure difference between both sides of the discharge port of the pumping chamber 231 are higher than the set pressure difference of the check valve 24, the liquid in the liquid storage chamber 22 flows into the pumping chamber 231 or the liquid in the pumping chamber 231 flows out. When the pressure difference across the check valve 24 is less than the set pressure difference, the check valve closes and the one-way communication closes.

In one embodiment, the check valve 24 includes a first check valve 241, a second check valve 242. As shown in fig. 6 and 7, the first check valve 241 disposed at the suction port of the pumping chamber 23 includes a first check valve hole 2411 disposed on the side wall of the pumping chamber 231 connected to the liquid storage chamber 22, and a first valve hole plug 2412 covering one end of the first check valve hole 2411 facing the pumping chamber 231, so that the pumping chamber 231 is in one-way communication with the liquid storage chamber 22. The second check valve 242 disposed at the discharge port of the pumping chamber 231 includes a second check valve hole 2421 disposed in the sidewall of one side of the pumping chamber 231, and a second valve hole plug 2422 covering the outer side end of the second check valve hole 2421. When the piston connecting rod assembly 11 moves to reduce the pressure in the pumping and discharging cavity 231, the first valve hole plug 2412 is elastically deformed and opened, and the liquid in the liquid storage cavity 22 enters the pumping and discharging cavity 231 through the first one-way valve 241; the piston and connecting rod assembly 11 moves to increase the pressure in the pumping chamber 231, the second valve plug 2422 is elastically deformed to be opened, and the liquid in the pumping chamber 231 flows out through the second check valve 242.

It should be understood that the first and second valve plugs 2412 and 2422 are soft plugs and are elastically deformed when the pressure difference between the two sides of the plugs reaches a certain value.

In one embodiment, the check valve 24 includes a valve body, a valve spool disposed within the valve body, and a spring (not shown). The pressure difference of the cavities on the two sides of the one-way valve 24 reaches a set pressure value, and one-way communication is opened.

In one embodiment, when the protruding rod 122 of the pumping mechanism body 100 is located in the middle of the long hole 111a of the pumping mechanism body 100 and closest to the piston cavity 23, and the piston head 112 of the pumping mechanism body 100 is located away from the first one-way valve 241 and close to the second one-way valve 242, both the first one-way valve 241 and the second one-way valve 242 are in the closed state, and it is set that the pumping mechanism body 100 is in the initial pumping position, i.e., not in the state of pumping in liquid and not in the state of discharging liquid. Fig. 6 is a schematic view of the pumping mechanism body 100 at the initial pumping position. By controlling the size and matching connection relationship between the protruding rod of the rotating member and the long hole 111a, the size of the piston cavity 23, the initial position of the pumping and discharging, and the pressure difference set by the first check valve 241 and the second check valve 242, the distance of a complete single-pass movement of the pumping and discharging mechanism body 100 can be accurately controlled, so that the pumping amount of liquid entering the pumping and discharging cavity 231 or the discharging amount of liquid when the liquid flows out can be accurately controlled, and the liquid can be accurately and automatically thrown in.

The piston chamber 23 is located at or near the bottom of the liquid storage chamber 22 and the first check valve 241 is located near the bottom of the liquid storage chamber 22 to maximize the height difference between the liquid storage chamber 22 and the piston chamber 23, and thus the pressure difference between the pumping chamber 231 and the liquid storage chamber 22 across the first check valve 241.

The housing 21 is provided with a discharge port 211 for discharging the liquid into the liquid storage chamber 22 so as to store the liquid into the liquid storage chamber 22 as required.

Example 4

The utility model also provides a washing machine, including the washing machine body, still including setting up as above in the washing machine body automatic put in and throw material box body 200, take out and put 100 fixed connection of mechanism in the washing machine body.

In one embodiment, as shown in fig. 5 and 6, the drainage cavity is in one-way communication with the drainage cavity of the washing machine, and further, the drainage cavity is in one-way communication with the drainage cavity of the washing machine through a one-way valve.

In one embodiment, the pumping chamber 231 is disposed apart from the drainage chamber of the washing machine, that is, the pumping chamber 231 is not connected to the drainage chamber of the washing machine, and only the discharge port of the pumping chamber 231 is aligned with the drainage chamber of the washing machine, so that the liquid in the pumping chamber 231 can be discharged into the drainage chamber of the washing machine through the discharge port under the action of the piston link assembly 11.

Wherein, the liquid guide cavity is a cavity for directly pouring detergent into the water barrel of the washing machine.

The casing 21 can be partially ejected or drawn out relative to the washing machine body so that the input port 211 of the casing 21 is partially or completely exposed out of the washing machine body, so as to input liquid into the liquid storage chamber 22. When the casing 21 is ejected or pulled out, the drawing mechanism body 100 is fixed in the washing machine body and does not move along with the washing machine body, at this time, the casing 21 is pulled away by a certain distance relative to the drawing mechanism body 100, that is, the piston head 112 moves in the piston cavity 23, so that the space of the drawing cavity 231 is increased, and the pressure in the drawing cavity 231 is reduced.

In one embodiment, when the housing 21 is pulled apart by a certain distance to dispense liquid from the dispensing opening 211 into the liquid storage chamber 22, the pressure in the pumping chamber 231 is reduced to a degree that does not cause the first check valve 241 to open, and the check communication is still closed.

In an embodiment, when the housing 21 is pulled away for a certain distance to put liquid into the liquid storage chamber 22 from the input port 211, the pressure in the pumping chamber 231 is reduced to a corresponding degree, so that a certain amount of liquid enters the pumping chamber 231 from the liquid storage chamber 22 through the first check valve 241, and when the certain amount of liquid enters, the pressure difference between two sides of the first check valve 241 does not satisfy the condition that the first check valve 241 is opened, and the one-way communication is closed. The amount of liquid entering the pumping chamber 231 is not excessive, and when the pumping mechanism body 100 moves in the piston chamber 23 for pumping after the housing 21 is retracted into the washing machine body, the certain amount of liquid entering the pumping chamber 231 is always remained in the pumping chamber 231 due to the ejection or pumping of the housing 21, so that the accurate control of the liquid dosage is not affected.

As shown in fig. 3, further, in order to precisely control the ejection or extraction distance of the casing 21 and precisely control the pressure variation in the extraction chamber 231, the outer wall of the casing 21 is provided with a limit block 212 for limiting the ejection or extraction distance of the casing 21 relative to the washing machine body. The limiting block 212 is protruded on the outer surface of the casing 21, the limiting block 212 does not contact the inner wall of the washing machine body in the process of ejecting or withdrawing the casing 21, and when the limited ejecting or withdrawing distance is reached, the limiting block 212 contacts the inner wall of the washing machine body, so as to limit the continuous ejecting or withdrawing movement of the casing 21, so that the reciprocating movement of the withdrawing mechanism body 100 relative to the piston cavity 23 caused by the movement that the part of the casing 21 is exposed on the surface of the washing machine body or is retracted into the washing machine body does not cause the inflow or outflow of the liquid in the withdrawing cavity 231.

The utility model discloses compare prior art, the utility model provides an automatic put in drawing of liquid and put mechanism simple structure, and can be used for the volume that accurate control took out or put liquid, realize accurate automatic putting.

The utility model provides an automatic feeding box of puting in liquid of single chamber piston, through the cooperation of taking out and putting structure body and piston chamber, check valve, the accurate automatic liquid of puting in that carries on is fit for single chamber liquid and puts in.

The utility model provides a washing machine, when popping out or taking the casing out, inject the distance that the casing popped out or taken out through the stopper, the motion of piston head in the piston cavity can not form the influence to follow-up operation of taking out or putting and put volume when control casing pops out or takes out. When the washing machine is used, the detergent with high use frequency can be placed in the liquid storage cavity, and other detergents with low use frequency can be directly and manually added into the liquid guide cavity of the washing machine, so that the trouble of manual labor of a user is avoided.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way; the utility model can be smoothly implemented by the ordinary technicians in the industry according to the drawings and the above description; however, those skilled in the art should understand that changes, modifications and variations made by the above-described technology can be made without departing from the scope of the present invention, and all such changes, modifications and variations are equivalent embodiments of the present invention; meanwhile, any changes, modifications, evolutions, etc. of the above embodiments, which are equivalent to the actual techniques of the present invention, still belong to the protection scope of the technical solution of the present invention.

Claims (19)

1. A pumping and releasing mechanism for automatically throwing in liquid comprises a pumping and releasing mechanism body (100) arranged in an automatically throwing and feeding box body (200), and is characterized in that the pumping and releasing mechanism body (100) comprises a piston connecting rod assembly (11) and a driving assembly (12) connected with the piston connecting rod assembly (11), and the piston connecting rod assembly (11) is movably arranged in a piston cavity (23) in the automatically throwing and feeding box body (200); wherein the content of the first and second substances,

the piston connecting rod assembly (11) and the inner wall of the piston cavity (23) form a sealed pumping cavity (231), the driving assembly (12) drives the piston connecting rod assembly (11) to reciprocate in the piston cavity (23) to change the pressure in the pumping cavity (231), so that liquid in the liquid storage cavity (22) communicated with the pumping cavity (231) in a one-way mode flows into the pumping cavity (231) or liquid in the pumping cavity (231) flows out, and pumping or discharging of the liquid is achieved.

2. The pumping mechanism for automatically delivering liquid according to claim 1, wherein the piston-connecting rod assembly (11) comprises a piston connecting rod (111) and a piston head (112), and the piston head (112) is attached to the inner wall of the piston cavity (23) to seal the pumping cavity (231); one end of the piston connecting rod (111) is connected with the piston head (112), and the other end of the piston connecting rod is connected with the driving assembly (12).

3. The pumping mechanism for automatically releasing liquid according to claim 2, characterized in that the driving assembly (12) comprises a motor, a rotating member (121), and a protruding rod (122), the protruding rod (122) is eccentrically arranged on one side of one surface of the rotating member (121), the other surface of the rotating member (121) opposite to the protruding rod (122) is connected with the motor, one end of the piston connecting rod (111) is provided with a long hole (111a), and one end of the protruding rod (122) is movably arranged in the long hole (111 a); wherein the content of the first and second substances,

the motor drives the rotating piece (121) to rotate, so that the convex rod (122) reciprocates in the long hole (111a) to guide the piston connecting rod assembly (11) to reciprocate in the piston cavity (23).

4. A pumping mechanism for automatically delivering liquid according to claim 3, wherein the length direction of the long hole (111a) is perpendicular to the reciprocating direction of the piston-connecting rod assembly (11).

5. The pumping mechanism for automatically releasing liquid according to claim 4, wherein the rotating member (121) and the protruding rod (122) are both cylindrical, the motor drives the protruding rod (122) to perform a circular motion, and the length of the long hole (111a) is greater than or equal to the diameter of a circle on which the circular motion path of the protruding rod (122) is located.

6. The pumping mechanism for automatically releasing liquid according to claim 4, wherein the motor drives the protruding rod (122) to reciprocate along an arc-shaped path, and the length of the long hole (111a) is smaller than the radius of a circle on which the arc-shaped path of the protruding rod (122) is located.

7. A pumping mechanism for automatically administering liquids as claimed in any of claims 2-5, characterized in that said piston head (112) is provided with at least one sealing ring (113) around the periphery.

8. A feeding box with a single-cavity piston for automatically feeding liquid comprises an automatic feeding box body (200), and is characterized in that the automatic feeding box body (200) comprises a shell (21), a liquid storage cavity (22) and a piston cavity (23) which are arranged in the shell (21), and a pumping and discharging mechanism body (100) as claimed in claim 1, wherein a sealed pumping and discharging cavity (231) is formed by a piston connecting rod assembly (11) and the inner wall of the piston cavity (23), and the liquid storage cavity (22) is communicated with the pumping and discharging cavity (231) in a one-way manner; wherein the content of the first and second substances,

the pumping and discharging mechanism body (100) changes the pressure in the pumping and discharging cavity (231) so that the liquid in the liquid storage cavity (22) flows into the pumping and discharging cavity (231) or the liquid in the pumping and discharging cavity (231) flows out, and automatic liquid feeding is realized.

9. A single-chamber piston type automatic liquid-dispensing dosing cartridge as claimed in claim 8, wherein the pumping chamber (231) is provided with a check valve (24) at a suction port with respect to the liquid storage chamber (22) and a discharge port of the pumping chamber (231), respectively, and the check valve (24) is opened or closed according to a pressure change in the pumping chamber (231).

10. The single-chamber piston type automatic liquid-dispensing dosing box according to claim 9, characterized in that the first one-way valve (241) disposed at the suction port of the pumping chamber (231) comprises a first one-way valve hole (2411) disposed on the side wall of the pumping chamber (231) connected to the liquid storage chamber (22), and a first valve hole plug (2412) covering one end of the first one-way valve hole (2411) facing the pumping chamber (231), so as to make the pumping chamber (231) and the liquid storage chamber (22) communicate with each other in one way; the second one-way valve (242) is arranged at the discharge port of the pumping and discharging cavity (231) and comprises a second one-way valve hole (2421) arranged on the side wall of one side of the pumping and discharging cavity (231) and a second valve hole plug (2422) covering the outer side end of the second one-way valve hole (2421); wherein the content of the first and second substances,

the piston connecting rod assembly (11) moves to change the pressure in the pumping cavity (231), so that the first valve hole plug (2412) or the second valve hole plug (2422) generates elastic deformation to be opened, and the first one-way valve (241) or the second one-way valve (242) is opened.

11. The single-chamber piston type automatic liquid feeding box according to claim 10, wherein the protruding rod (122) of the pumping mechanism body (100) is located in the middle of the long hole (111a) of the pumping mechanism body (100) and closest to the piston chamber (23), and the piston head (112) of the pumping mechanism body (100) is located far away from the first one-way valve (241) and close to the second one-way valve (242), and at the time, the first one-way valve (241) and the second one-way valve (242) are both in a closed state.

12. A single-chamber piston type automatic liquid dosing cartridge as claimed in any one of claims 8 to 11, wherein the piston chamber (23) is located at or near the bottom of the liquid storage chamber (22).

13. A single-chamber piston type automatic liquid dosing cartridge as claimed in claim 10 or 11, wherein said first one-way valve (241) is located near the bottom of said liquid storage chamber (22).

14. A single-chamber piston type automatic liquid feeding cartridge as claimed in any one of claims 8-11, wherein said housing (21) is provided with a feeding port (211) for feeding liquid into said liquid storage chamber (22).

15. A washing machine comprising a washing machine body, characterized in that it further comprises an automatic dosing box body (200) according to any one of claims 8 to 14 arranged inside the washing machine body, and the drawing and releasing mechanism body (100) is fixedly connected inside the washing machine body.

16. The washing machine as claimed in claim 15, wherein a discharge port of the pumping chamber (231) is in one-way communication with a drainage chamber of the washing machine.

17. The washing machine as claimed in claim 15, wherein the pumping chamber (231) is provided separately from a drainage chamber of the washing machine, and a discharge port of the pumping chamber (231) is aligned with the drainage chamber of the washing machine.

18. A washing machine according to claim 15, characterized in that the casing (21) is partially ejected or extracted with respect to the washing machine body so that the input opening (211) of the casing (21) is partially or totally exposed to the washing machine body.

19. A washing machine as claimed in claim 18, characterized in that the outer wall of the casing (21) is provided with a stopper (212) for limiting the ejection or extraction distance of the casing (21) with respect to the washing machine body part.

Images